The family of a teenager missing for almost four weeks have pleaded for her to return home in a video appeal on the day before her 19th birthday.

Nida Ul-Naseer has not been seen since December 28, when she left her home in Newport, South Wales, to take out the rubbish.

Concerns for her safety continue to mount as the student was not wearing shoes when she disappeared from her home in Linton Street.

She also did not have her phone, money or coat when she vanished.

There has been an extensive search by police for the missing teen, and repeated appeals.

Nida was not wearing shoes and had no phone, cash or coat when she vanished

In the latest plea, two separate video clips have been posted on Gwent Police's YouTube channel from her father, mother, and sister Shamyla.

Her father said: "We are very worried about Nida. If anyone knows about Nida tell us. We just want her to come back."

In her 56-second appeal, Shamyla, 23, sitting next to her tearful mother, said: "Nida, if you are listening to me please come back home.

"We all worry about you Nida. We all love you Nida.

"You don't have to worry about anything. We are here for you."

Nida's family, who are originally from Pakistan, have been seeking asylum in Britain, but their application was turned down last year. They are appealing the decision.

On the night she disappeared Nida had been angry and upset that she could not go to university because her family are asylum seekers. Shamyla said she was "shouting and crying".

Police have described her disappearance as a "mystery".

Superintendent Mark Warrender said: "We are continuing to search CCTV and to look into any information that comes in, but we really haven't had anything that would lead us to the positive identification of Nida.

"We are keeping an open mind."

Nida is described as 5ft 3ins tall, and was last seen wearing blue jeans and a black top.

Her family has repeatedly denied claims that the teenager had run off with a secret boyfriend or that she was due to be involved in an arranged marriage.